Description

When we try to copy an image from Windows Photo Viewer and then paste that image in Confluence, sometimes it throws an error:

Environment

• Windows 10
• Confluence 6.0.3
• Firefox 50.1.0
• Windows Photo Viewer

Steps to reproduce:

1. Open an image on Windows photo viewer;
2. Right-click -> Copy;
3. Open a Confluence page in edit mode;
4. Right-click -> Paste;

Expected result:
The image is attached properly.

Actual Result
"Length of stream must be greater than 0."

Workaround
Use Google Chrome;

or

1. Paste and save the image with any image editor;
2. Attach the file itself rather than a selection (via drag and drop, Insert Files button, etc);